ES2638514T3 - Machine tool, in particular grinding machine and workpiece support for a machine tool - Google Patents

Abstract

Installation of work piece housing (34) for a machine tool (10), in particular a grinding machine for the machining by starting of workpiece chips (50), in which the installation of work piece housing ( 34) presents a workpiece table (70) with a guide (36), in which a workpiece fixing bracket (40) can be housed, in which the workpiece table (70) presents , in addition, a support section (74) with a module support (80), in which the support section (74) is associated with a guide (36), and in which the module support (80) is housed in a longitudinally movable way in the support section (74) and can be coupled with a drive (86), characterized in that the support section (74) is integrated in the guide (36).

Description

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DESCRIPTION

Machine tool, in particular grinding machine and workpiece support for a machine tool

The invention relates to an installation of workpiece housing for a machine tool, in particular for a grinding machine, for the machining by starting of workpiece chips, in which the installation of workpiece housing Workpiece table with a handle, in which a workpiece holder can be accommodated, preferably can be accommodated longitudinally movable. The invention also relates to a machine tool, in particular a grinding machine, for the machining by start-up of workpiece chips, which is provided with a housing installation of workpieces of this type.

EP 0 239 161 A2 and WO 2005/080048 A1 are considered as the closest state of the art with respect to the object of claim 1. They show, respectively, an installation of workpiece housing for a machine tool, in Particularly a grinding machine, for the machining by start-up of workpiece shavings, in which the installation of workpiece housing has a workpiece table with a grille, in which a fixing bracket for the work pieces, so that the work pieces table also has a support section with a module support, in which the support section is associated with the crane, in which the module support is housed longitudinally movable in the support section and can be coupled with a drive.

A machine tool, which is specially configured as a grinding machine, is known, for example, from EP 2 682 229 A2. In this case, it is a machine tool, in particular a grinding machine for the machining by starting of workpiece chips, with a housing of work pieces for the accommodation of a work piece, with a spindle head for the housing of a tool, in particular an abrasive wheel, with a manipulation installation for the automatic change of tools, and with a measuring installation for the detection of at least one parameter of the workpiece.

From EP 2 682 229 A2, a machine tool and assembly machine are known, with a machine bed with at least one crane extending in the longitudinal direction of the machine, on which stationary and / or carriages are guided mobile, which are provided for the accommodation of fixing facilities, support facilities and handling facilities for tools or work pieces, in which for the complete machining of work pieces on the bench a continuous, parallel main line is configured to which another auxiliary crane is arranged on the bench.

From EP 2 682 229 A2 a vertical machining machine in a modular construction type is known, with a machine frame, with a plurality of first fixing elements, which are arranged at least on a first surface of the frame of the machine, in particular on the front side of the machine frame, with at least one crane module, and with at least one carriage module, which is movably housed in the at least one carriage module, which is housed displaceable form in the at least one module of the crane, in which the module of the crane has a plurality of second fixing elements, which are arranged in pairs in the first fixing elements, in which the module of the crane can be connected with the frame of the machine, and in which the at least one carriage module has a plurality of first fixing elements.

It is known from EP 2 345 492 A2 a machine tool for erosion of material with workpiece rotatably driven, in particular a lathe, which has a rolling unit in fno, in which the rolling unit in fno It is arranged apart from the tool units for tools for erosion of material and is movable on Z-grains of the tool units for erosion of material in the machine bed.

Other machine tools are known from US 3 762 102 A, DE 10 2009 041 596 A1 as well as US4 546 531 A.

Machine tools, such as grinding machines, in particular round grinding machines, are known in the state of the art. Thus, for example, round grinding machines have rotary symmetrical tools, such as grinding wheels. These can collaborate adequately with a work piece for the erosion of material. Round grinding machines can be configured, for example, for round external rectification, for round internal rectification, in addition to penetrating rectification or inclined penetrating rectification. In addition to abrasive emulsifiers, abrasive tapes can be used in principle during round grinding. In addition to rotating symmetrical workpiece surfaces, perhaps eccentric configured workpiece surfaces can also be machined, when the workpiece housing and a tool unit (perhaps the spindle head) can be operated in a manner adequate and can move relatively between sf In this way you can mechanize or rectify perhaps camshafts, crankshafts or simulated workpieces with eccentric geometries. Also I know

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They know machine tools, which allow a combined mechanization of work pieces, such as combined grinding and lathe machines.

During machining by chip removal, in particular, during rectification machining, there is often a desire to obtain highly accurate and reproducible manufacturing results. Given this background, it is sometimes intended to measure or verify the work pieces during mechanization or immediately after that. This can reduce passing times and raise the quality of manufacturing. Furthermore, a re-coupling with the mechanization process is conceivable, perhaps evaluating the measurement results and on this basis adapting the mechanization parameters.

A workpiece to be machined may be housed between two tips of a workpiece housing or, on the other hand, on one side in a workpiece housing. In addition, the so-called pointless grinding is known, in which the workpiece is not housed in the (axial) grinding machine between spikes. Instead, the work piece is received and guided perhaps on support rails, regulation discs, grid roidillos, lunettes or the like.

A workpiece accommodation installation should normally be understood as an installation, which is configured for the accommodation and preparation of at least one workpiece for mechanization purposes. Accordingly, the workpiece housing installation may comprise perhaps a workpiece spindle, a movable head, lunettes, fixing devices, support devices, clamping chucks, support discs and the like. Normally, a workpiece accommodation installation also has a workpiece table, which can be coupled with a machine frame or bench of the machine tool. In principle, the workpiece table can be fixedly coupled with the machine bed. However, it is also conceivable to accommodate the workpiece table in a movable or mobile way on the machine bed. In this way, a relative movement of the workpiece table can be carried out in front of the machine bed. In this way it can also be prepared through the collaboration between the machine bench and the workpiece table and to an axis (of movement). In this case, it can normally be a longitudinal axis, that is, an axis that is oriented, in general, parallel to a longitudinal extension of a workpiece to be housed.

Different components of the workpiece accommodation installation can be housed in the workpiece table. In this case, it can be a workpiece support in particular. Typical examples of workpiece holders may be workpiece spindles, which are equipped with corresponding fixing means or brackets for fixing workpieces. In addition, workpiece supports may also comprise so-called movable heads or similarly configured elements. For the accommodation of workpiece supports and similar configuration elements, usually a work table is configured on the workpiece table, which has a work profile. The supports of work pieces and similar components, which are configured with a corresponding counter profile, can be housed and fixed in the grid.

There is, in general, the desire to expand the functional reach of machine tools. This may refer perhaps to the manipulation of work pieces, to extended machining functions as well as quality control measures. Therefore, in certain circumstances it is necessary to incorporate other components in a process space of a machine tool and arrange them there. This may involve a high expense, since this often also requires the integration of additional (positioning) axes, drives and similar components. In addition, a machining space available for mechanization can be reduced through additional components. This can also have a negative impact on the productivity of the machine tool. In certain circumstances, workpieces of certain dimensions can no longer be machined by virtue of the presence of additional components in the process space, which penetrates the processing space.

Given this background, the invention has the task of indicating a workpiece housing installation for a machine tool as well as a machine tool, in particular a grinding machine, with such a workpiece housing installation, which may allow simple the realization and preparation of additional functionalities and do not excessively limit an available machining space. The installation of work piece housing should prepare high flexibility if possible and should preferably be configured for collaboration with different modules, which can prepare different (additional) functionalities. However, in addition, the function of the installation of work piece housing, namely the accommodation and preparation of work pieces for mechanization, must not be impaired or only to a non-essential extent.

This task is solved in accordance with the invention by means of a workpiece housing installation for a machine tool, in particular a grinding machine for the machining by starting of workpiece chips, in which the housing installation of work pieces presents a table of

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work pieces with a grille, in which a workpiece fixing support can be housed, in which the workpiece table also has a support section with a module support, in particular with a support of measurement for the accommodation of a measuring unit, in which the support section is associated with a crane, in which the module support is housed longitudinally in the support section and can be coupled with a drive, and in which the support section is integrated in the grid.

In this way, the purpose of the invention is completely solved.

In fact, according to the invention, the support section can be integrated with the support module in the grid such that it is configured in a known manner in principle for the accommodation of workpiece supports. However, in addition to the module section of the support section, at least one other component can be housed, preferably a measuring unit, which is movable or movable in the longitudinal direction. The module support can be configured movable in relation to the workpiece table in the longitudinal direction. In particular, the possibility of movement can be guaranteed by means of a separate drive. In other words, an additional controllable axis can be integrated into the grid prepared through the workpiece table, which does not impair or only to a non-essential extent the basic functionality of the workpiece housing installation, namely , accommodation and fixing of the work piece for mechanization. However, the support section with the module support can be used for a plurality of additional functionalities and / or additional components, in particular for measurement tasks and / or quality control tasks. In principle, handling facilities, support facilities and similar components can also be housed in the module holder. Preferably, such components are housed in the module holder, in which the longitudinal displacement capacity in relation to the workpiece table is linked with advantages in the application.

In other words, the support section can be configured as a projection (or intermediate piece) of the (main) crane, which is already prepared through the workpiece table. Preferably, the support section is integrated flush with the grid. The support section can be integrated in such a way that the inconveniences (of the construction space) of additional modules flanged from the outside can be avoided, as perhaps separate auxiliary axes. The support section can be integrated almost neutral to the space. The support section can be inserted in the grid or in the workpiece table, which presents the grid and / or can be arranged there countersunk. This has essential advantages in machine tools, which are provided with housings, since the process booths well fitted machining spaces are predetermined and cannot be adapted discretionary. Preferably, the support section is arranged between a first workpiece fixing support, perhaps a workpiece spindle with fixing mandrel, and a second workpiece fixing support, perhaps a moving head.

In general, unless a workpiece holder can be housed in the workpiece table. In particular, during the machining of the workpiece, the at least one workpiece fixing support can be fixed on the workpiece table, especially in its workpiece. This may include that the at least one workpiece fixing support cannot be moved and / or displaced precisely during machining in the longitudinal direction. In general, the at least one workpiece fixing bracket may comprise a workpiece spindle, a movable head, fixing facilities and similar components for housing and fixing the workpiece.

When a "longitudinal displacement capacity" is discussed in the context of this publication, a displacement or movement capacity along an axis can be understood as such, which is oriented essentially parallel to a longitudinal axis of the workpiece .

Preferably, the support section is configured as a component of the workpiece housing installation. This means in other words, from the point of view of a support for fixing the work pieces, that it is configured with a counter profile suitable for accommodation in the crane's profile, which does not result in any essential difference through of the integration of the support section in the workpiece table. Therefore, in principle, the workpiece fixing support can also be moved, at least by sections, in the support section, so that it can be fixed there

According to another configuration of the workpiece housing installation, the support section, the module support and the drive define a positioning axis, which allows a displacement of the module support in a longitudinal direction along the length of the less a section of the crane, which is defined through the support section, so that the workpiece fixing support can be housed in a longitudinally movable manner in the crane. In other words, a positioning axis can be prepared, which is oriented, in principle, parallel to the longitudinal (global) axis of the machine tool. The longitudinal (global) axis of the machine tool can also be designated as a Z-axis. In general, the Z-axis can also be designated as a forward axis. It may be advantageous to enable another relative movement in the longitudinal direction in relation to the Z-axis. In this way, sections of the section can be explored and measured axially.

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Workpiece.

According to another configuration of the work piece accommodation installation, the support section is configured as an insert, which can be housed in a work piece table housing. In this way, the support section can be configured as a GMA section, which prepares a GMA geometry or a GMA cross section, which essentially corresponds to the GMA cross section or to the GMA geometry. from the workpiece table. This essentially refers to an "interface" of the GMA for hosting against corresponding profiles.

According to another configuration, the GMA has a GMA profile that extends in the longitudinal direction on the workpiece table and extends, at least in sections, also in the support section. In other words, the support section can prepare a gma profile, which is configured as an extension of the gma profile of the gma, which is already prepared through the workpiece table. In other words, a cross section can be prepared along the entire longitudinal extension of the gma, in which components provided with corresponding profiles can be guided and / or housed. In this way, maybe a work piece spindle, a moving head or a similar element can be displaced in the area of the support section, since there is also a suitable gm contour or a profile of suitable gma. In this way, the support section does not impair the basic functionality of the workpiece accommodation installation.

It is understood that the support section may be provided, at least in sections, with a cross-section or cross-section, which does not correspond to the gma profile of the table gma of the work pieces. A transverse profile can be understood as a cross section, which extends essentially perpendicular to the longitudinal extension or longitudinal axis (Z-axis).

According to another development of the previous configuration, the gma profile of the workpiece table and the gma profile of the support section are aligned with each other in the assembled state with each other, preferably they are aligned so that match between sf

According to another configuration of the workpiece housing installation, the support section configures a section of the gma, in particular a middle section along a longitudinal extension of the gma. Accordingly, the GMA has a basic section, which is essentially configured in one piece with the workpiece table. In addition, the support section may be incorporated in the base section and may be housed there in a housing. In this way a continuous extension of the gma with the gma profile can result out.

According to another configuration of the workpiece housing installation, the module support comprises at least one support arm, which crosses a recess, which extends essentially in the longitudinal direction, of the support section. This means in other words that the module support can be housed and guided on the lower side of the gma. This may comprise that the module holder is housed and guided in its own separate longitudinal range. In this case it may be a linear drive, in particular a spindle drive.

The previous configuration has the consequence that the module support does not directly contact the GMA or its effective GMA surfaces. In this way, the module holder can be housed independently of the (global) gma in the workpiece holder. This may have the advantage that no wear is generated through the module support in the gmas itself. A separation of the gma (overall) for the support for fixing the workpiece and the gma (local, additional for the module support has the additional advantage that both systems are independent of each other and are not essentially influenced. This can have a positive impact on the accuracy of mechanization.The GMA (global) is not subject to high wear, as the module support moves frequently along its (local) gma. modules have an integrated measuring system, which can also be designated as a unit for detecting the position The module support can be assembled and disassembled preferably without the geometric influence of the GMA (global) This can further increase the independence of the support of modules and can create other possibilities of application.

According to an alternative configuration, the module holder is configured as a longitudinally movable mobile head adapted to the GMA profile. According to this configuration, the module support can therefore be adapted to the GMA profile of the GMA, so that it can be moved along the GMA. The module holder can therefore use, at least partially, the GMA or the GMA profile. Also in this configuration it is conceivable that the module support has at least one support arm, which crosses a recess, which extends in the longitudinal direction, of the support section, to engage on a lower side of the support section with a drive

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According to another configuration of the workpiece housing installation, the module holder can be coupled with a linear drive, in particular with a spindle drive. This can be done in the manner described in principle above by means of at least one support arm. In other words, it is preferred that the linear drive, in particular the spindle drive, is arranged on the "bottom side" of the support section. When speaking in the context of this publication of a lower side, it should essentially be understood that side, which is far from the grid, in which at least one support for fixing the work pieces is arranged. Accordingly, the last mentioned side can also be designated as "upper side". It is understood that the concepts of "lower side" and "upper side" should not be strictly understood.

The arrangement of the linear drive on the lower side of the support section has the advantage that the linear drive is not exposed or only to a limited extent to contamination, which may appear on the upper side. Typical contamination may occur during workpiece grinding, perhaps through chips, erosion, grinding emulsions, operating media, coolants, lubricants and the like. Therefore, it is advantageous to arrange the linear drive on the lower side and encapsulate it accordingly against the upper side.

According to a development of the previous configuration, the linear drive can be coupled with a motor, especially a servo motor, in which the motor is coupled to the workpiece table, and in which the motor can be coupled indirectly with the module holder, in particular by means of a belt transmission, in which the belt transmission extends, at least by sections, through a recess of the housing on the workpiece table. This configuration has the advantage that the drive itself, that is, the motor, which performs the longitudinal displacement of the module holder, can be arranged away from the module holder. The module holder can be indirectly coupled through the linear drive and, if present, through the belt drive, with the engine. This has the advantage that the engine can be arranged in an area, which is only exposed to a limited extent to pollution and / or harmful environmental influences. In addition, the advantage may be that the engine is easily accessible, perhaps for maintenance work or the like. A coupling between the motor and the linear drive may be carried out through a toothed belt or similar traction means.

It is understood that other types of coupling between the motor and the linear drive are also conceivable, for example by means of sprockets or similar force transmission elements. Finally, it is also conceivable that the linear coupling is directly coupled with the motor or is configured as a linear drive with an integrated motor. However, since it is advantageous to weaken the table of work pieces if possible only to a small extent, to configure the housing for the support section, it may be especially preferred to arrange the motor outside the table of the workpieces. job. The transmission of force can be carried out suitably through a transmission, perhaps through a mechanism of traction means, sprockets or the like.

According to another configuration of the workpiece housing installation, a first fixing bracket and a second fixing bracket are housed in the workpiece table, in particular a workpiece spindle and a moving head , in which the first fixing support, the second fixing support and the module support are housed in the grid, and in which the module support is movable between the first fixing support and the second fixing support. Normally, the work pieces to be machined are housed or fixed on both sides. Accordingly, a first fixing bracket may be associated with a first end of the workpiece and a second fixing support may be associated with a second end of the workpiece. In an exemplary manner, in the fixing brackets it can be a workpiece spindle as well as an opposite placed mobile head. The workpiece can be machined between the workpiece spindle and the moving head, perhaps it can be ground by means of an abrasive wheel.

It is advantageous that the module support is arranged between the first fixing support and the second fixing support and is movable at least to a limited extent between them in the longitudinal direction. In this way, the module support can be moved, in particular a measurement unit directly or indirectly housed in the module support, in the longitudinal direction, to fulfill different measurement tasks. This can be done, in principle, already during mechanization. It will also be conceivable to perform measurement tasks with time displacement (reduced for mechanization, In any case, it is advantageous to measure the work piece in the housed state (also: tensioned). On the one hand, in effect, then it is defined with sufficient Accuracy of a starting position of the workpiece - This can be advantageous for absolute measurements.In addition, it may be advantageous to perform measurements on the embedded workpiece, since perhaps when deviations are established, a correction can be made without new fixation and / or embedment.

According to another configuration of the workpiece housing installation, a measurement recorder is housed in the module holder, in particular an optical measuring probe, a touch measuring probe or an approach sensor. In general, the measurement recorder can be configured to axially scan the workpiece or sections thereof. In this way, you can determine maybe

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axial extensions. This may prove advantageous, for example, during the rectification of grooves, incisions, appendages, cams or similarly configured elements. Alternatively or additionally, the measurement recorder may be configured to detect diameter values. This can be especially advantageous in the case of external round rectification. It is understood that the measurement recorder can be configured, in principle, as a measurement recorder of one purpose, but also as a measurement recorder of various purposes.

According to a development of the installation of accommodation of the work pieces, a position detection unit is also provided, which is configured, to detect absolute positions and / or relative positions of the module holder (80), in particular of a measurement recorder housed in the module holder. In this way, through the detection of the position of the module holder, the real positions of the workpiece can be deduced. when these are scanned through at least one position recorder. In addition, the advantage may be that the module holder or elements housed therein can be displaced especially precisely.

According to another configuration, the workpiece table can be fixedly coupled with the machine bed. According to this configuration, a relative movement between the workpiece and the tool (perhaps an abrasive wheel) in the longitudinal direction (along the Z-axis) can be performed perhaps through a cross table or a similar movable table, in which the spindle is housed in a longitudinal direction. In other words, in this configuration of the installation of accommodation of the work pieces a machine tool can be made in the type of cross construction.

According to an alternative configuration, the workpiece housing installation can be housed movable in the longitudinal direction on the machine bed. Therefore, according to this configuration, a relative movement between the workpiece table and the tool (perhaps the grinding wheel) can be made through a movement of the workpiece table itself. Accordingly, the workpiece table may be housed in one (other) longitudinal gma on the machine bed and may have corresponding drives for Z-direction movement. A machine tool, which is manufactured in accordance with this configuration, can also be designated as a T-car machine.

With respect to the machine tool, the purpose of the invention is solved by means of a machine tool, in particular a grinding machine, for the machining by start-up of workpiece chips, which presents an installation of accommodation of the work pieces according to at least some of the aspects mentioned above for the accommodation of a workpiece and a spindle head for the housing of a tool, in particular an abrasive wheel.

According to a development of the machine tool, it is configured as a T-car machine with a table of the workpieces movable in the longitudinal direction or as a cross-car machine with a table of the work pieces, which is fixed in A machine bed.

According to another configuration of the machine tool, it also includes a control installation, which can be coupled with a position detection unit, which is configured to detect displacement tracks of the module holder, in particular displacement of a measurement recorder housed in the module holder.

The detection can be carried out, in principle, indirectly through the supervision of a module holder drive. In addition, a direct detection can also be performed, perhaps by means of scale or means of detecting the similar position.

Other features and advantages of the invention are deduced from the following description and explanation of several preferred embodiments with reference to the drawings. In this case:

Figure 1 shows a perspective view of a machine tool configured as a grinding machine, with a housing, which is shown partially fragmentary.

Figure 2 shows a top plan view in perspective of a workpiece housing installation, comprising a gma with a support section and a module support.

Figure 3 shows a top plan view in perspective of an installation for accommodation of the work pieces, which is carried out, in principle, similar to the configuration according to Figure 2, in which a work piece spindle and a moving head is housed in a table of work pieces, and in which a support section, which configures a part of a range of the workpiece housing installation, is shown in an orderly exploded state.

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Figure 4 shows a partial perspective view of a housing installation of the work pieces carried out in a similar way to the configuration according to Figure 3, in which a measuring support with a measuring unit is housed in the support section for the measurement of a work piece.

Figure 5 shows a perspective view (inclined from below) of a support section, which is provided with a linear drive, in which the support section can be integrated into a workpiece table of an installation of accommodation of work pieces; Y

Figure 6 shows a top plan view in perspective of the support section according to Figure 5.

In figure 1 a machine tool is shown in perspective and is designated, in general, with 10.

The machine tool 10 is configured in this case as a grinding machine, in particular as a round grinding machine, in general also as a horizontal grinding machine. It is understood that the machine tool 10 can also be configured as a vertical grinding machine. The machine tool 10 has a box 12, which functions as a housing. The box 12 is partially shown fragmentary in Figure 1. A box 12 can define a process space, which is closed or can be closed outwards. The box 12 allows, especially in the case of automatic machining processes, a safe delimitation of the process space of the machine tool 10. In this way, a danger on the part of moving components can be minimized. In addition, an unwanted leakage of lubricant, cooling liquid or chips into the environment can be prevented. The box 12 can be suitably provided with doors or hatches, to allow access to the process space of the machine tool 10. It is understood that the machine tool 10 can be configured, in principle, also without a fully enclosing box 12. Thus, for example, a box 12 may be provided only by sections, for example a box 12 of the fence type.

The machine tool 10 has a machine bed 14, which can be designated, in general, also as a frame or machine table. The bed of the machine 14 can enable precise housing and grinding of components of the machine tool 10 avoiding deformations or deformations. With the machine bed 14, a spindle head 16 is attached (at least indirectly), in which a machining tool is housed. The spindle head 16 can also be designated as a rectifier head. In this case, the tool is an abrasive wheel 18, which is coupled with the spindle head 16 and can be driven through a spindle drive 22, see also an arrow designated 23 in Figure 2. The Grinding wheel 18 can be moved in rotations through the spindle drive 22 and can collaborate with a workpiece for the erosion of material. The grinding wheel 18 may be provided with a protection bell 20.

It is understood that the machine tool 10 can alternatively also have a plurality of tools, in particular abrasive wheels 18. Exemplary, abrasive wheels 18 can be provided on the spindle head 16, which are selectively pivotable inward for machining. . Such functionality can perhaps be described, as it were, as B-axis functionality. In addition, it is advantageous to provide the so-called revolvers, which prepare a plurality of abrasive wheels 18 for machining.

The coupling of the spindle head 16 with the machine bed 14 is performed in an exemplary manner using a cross table 24. The cross table 24 can prepare a first grind 26 and a second grind 28. The first grind 26 can allow a displacement of the spindle head 16 along an X-axis, see an arrow designated with 30. The second grille 28 may allow a displacement of the spindle head 16 in a Z-direction, see an arrow designated with 32. In general, in FIG. 1 exemplifies a corresponding X-YZ coordinate system. It is understood that the association of the X-Y-Z coordinate system with the machine tool 10 or its components can be carried out, in principle, also in another way. In particular, the designations of the axes may be associated with other orientations. In addition, it is understood that the preceding and following manifestations can be transferred to modified coordinate systems (transformed). In the same way, also general indications of the direction, indications of the direction of rotation, indications of relative associations, which perhaps refer to certain figures, can be transferred, in principle, also to other figures with directions of vision or modified view orientations.

With the bed of the machine 14 of the machine tool 10, a housing of the work pieces 34 is also coupled, which could be used for the accommodation and fixing of a work piece 50 to be machined. For example, the housing of the work pieces 34 comprises a rail 36, which is associated with a table of work pieces 70 coupled with the bed of the machine 14. The rail 36 can be extended, in principle, parallel to the axis. Z (also longitudinal axis, see arrow 32. The spindle head 16 with the tool (grinding wheel) housed there can be moved relative to the housing of the work pieces 34 to enable a desired machining of the work piece 50. The movement of the spindle head 16 can be carried out through suitable drives, which are coupled with the cross table 24.

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The housing of the work pieces 34 has an exemplary support for fixing the work piece 40, which is perhaps provided with a spindle of the work piece 38 for the work piece 50. The support of the work piece work 40 may, in principle, also comprise a (centering) tip and / or a fixing cone, fixing jaw and the like. The spindle of the workpiece 38 can also have a spindle drive, which makes it possible to rotate the fixing support of the workpiece 40 with the workpiece 50 housed therefrom definedly around a longitudinal axis 42, see an arrow designated 44. Such functionality may allow a so-called C-axis machining. The drive optionally provided in the spindle of the workpiece 38 can be designed and controlled, for example, such that the workpiece 50 can be rotated with high precision around the axis 42 (the C-axis). The mechanization of the C-axes allows the mechanization of non-round work pieces 50. For this purpose, the machine tool 10 may have suitable control and regulation organs, to rotate the workpiece 50 in a defined manner around the axis 42 and at the same time approximate the tool (grinding wheel 18) on the workpiece 40 or remove it from it. In this way, camshafts, crankshafts, or the like can be mechanized.

Regardless of whether the spindle of the workpiece 38 of the housing of the workpieces 34 is configured for the machining of C-axes or not, the longitudinal axis 42 can be defined at least by the fixing bracket of the workpiece 40. It is understood that with a workpiece 50 housed, its longitudinal axis may coincide with the longitudinal axis 42 defined by the housing of the workpiece 34.

The support of the work pieces 40 also has, in an exemplary manner, a mobile head 46. In this case, the mobile head 46 has an exemplary tip 48 for centering the work piece 50. The work piece 50 It is possible to guide and retain, in principle, also only through the spindle of the workpiece 38, without the need for the moving head 46. In particular, however, in workpieces 50 with a high relationship between length and diameter Bilateral housing can be recommended by means of the spindle of the workpiece 38 and the movable head 46. The excessively long workpieces 50 can also be guided and supported, in addition, by means of windows, rollers or supports (not shown in the Figure 1). It is conceivable to provide the spindle of the workpiece 38 or the movable head 46 with a linear drive, so that it can be moved in a defined and controlled manner along the rail 36.

In the workpiece 50, a section of the workpiece 52 is exemplary configured, which may be machined by means of the grinding wheel 18. For this purpose, the grinding wheel 18 can be rotatably driven. In addition, the grinding wheel18 can be approximated along the X-axis (radial) over the section of the workpiece 52 or it can be removed outside it. In this way the depth of mechanization can be influenced. An advance movement of the grinding wheel 18 in relation to the housing of the work pieces 34 or the section of the work piece 52 of the work piece 50 housed there can be carried out along the Z-axis. In Figure 1, the cranes 26, 28 are covered or sealed in the X-direction and in the Z-direction for the spindle head 16 in an exemplary manner by means of bellows, sleeves or similar protective structures represented in a simplified manner. . In this way, a drive of the spindle head 16 can be protected against contamination and damage.

The machine tool 10 shown in Figure 1 also has a user interface, 54, which is arranged outside a process space or interior space of the machine tool 10. In this way, a user can control, program, regulate or perhaps perform a diagnosis on the machine tool 10, without coming into contact with the interior space of the machine tool 10. In the user interface 54 it may be a control unit, which has at least one input unit 56 and an output unit 58. The input unit 56 may have a keyboard, button, adjustment lever or the like. The input unit 56 may, however, also have contact sensitive surfaces. In the output unit 58 it is normally a screen, in addition to alphanumeric representations, control lights, scales or the like. Especially when perhaps a screen is configured touch sensitive, the input unit 56 and the output unit 58 can be made at least partially by identical components.

In figure 1, a control installation is also indicated with the reference sign 60, comprising, for example, at least one processor, in order to activate components of the machine tool 10 in a suitable manner. In this way, the machine tool can be configured for automatic at least partial processing. The control installation 60 can be controlled and instructed accordingly, perhaps through the user interface 54. However, it is also conceivable to control the control installation 60 through external user interfaces, perhaps through posts of external computer work.

With the help of Figures 2 to 6, an especially advantageous configuration of a housing installation of the work pieces 34 is explained, which is suitable for use in the machine tool 10. The installation of accommodation of the work pieces 34 can be comprising a table of the work pieces 70. The table of the work pieces 70 may, in principle, be fixedly fixed with the frame or bed of the machine 14. However, it is also conceivable to couple the table of the work pieces 70 with its own drive to be able to move it in relation to the machine bed 14 in the longitudinal direction

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along axis 32. Accordingly, the workpiece table 70 may be a component of a T-car machine or a cross-car machine. In general, the workpiece table 70 is configured as a high stiffness component to allow precise accommodation and grinding of a workpiece 50 to be machined. In particular, the workpiece table 70 should be as deformable as possible during a machining to further increase the processing accuracy.

On the table of the workpieces 70, a rail 36 is configured, which comprises a rail profile 72 which extends essentially in the longitudinal direction 32 (Z-axis). The rail profile 72 may be configured perhaps of the rail type. The profile of grna 72 can have prismatic grna elements. The profile of girder 72 can comprise suitable sliding surfaces, which are contacted by (against) sliding surfaces of components, which can be housed in girder profile 72. In addition to the girder profiles 72 configured, in principle, in a prismatic manner, the cranes may comprise dovetail gnawing profiles, column gnawing profiles, flat gnawing profiles and, in addition, modified grinding profiles.

Especially from FIGS. 3 and 4 it is shown that at the end 36 of the table of the work pieces 70 at least one fixing support of the work pieces 40 can be housed, which may comprise a spindle of the work pieces 38, a moving head 46 and similar configured elements. Components of the workpiece fixing bracket 40 can be presented against suitable profiles, which are compatible with the profile of the 72 and can be housed therein.

At least one section of the profile of the line 72 of the line 36 is formed by a support section designated with 74. The support section 74 may be exemplary arranged in a (central) section of the line 36 designated with 76 in the Figure 2. The support section 74 can be configured as a separate part that can be suitably coupled with the workpiece table 70, to prepare a continuous grind 36 with a corresponding profile 72. The detail views of the support section 74 can be deduced from Figures 5

and 6.

Preferably, the support section 74 is configured to accommodate at least one module support 80, in particular to accommodate it in a longitudinally movable way. For this purpose, at least one recess 82 can be configured in the support section 74, which is traversed by the module support 80 or by parts associated therewith. Preferably, two recesses 82.1, 82-2 are configured in the support section 74, which are arranged parallel to each other and extend essentially in the longitudinal direction 32. In the module holder 80 a platform 84 can be configured, which is You can also designate as an interface. The platform 84 can be coupled with a module that can be housed in the module holder, perhaps a measuring unit.

It is especially preferred that the support section 74 is associated with an axis (of movement) that can be integrated into the table of the work pieces 70. This may especially include that the module support 80 is movable in the longitudinal direction 32 ( Z-axis). For this purpose, the module holder 80 can be coupled with a drive 86. The drive 86 can comprise at least one motor 88, which can be housed exemplary on the table of work pieces 70, in particular compare the figures 2, 3 and 4. The motor 88 can be coupled through its drive, perhaps by means of a wheel 90, with the module holder 80. Exemplary, the wheel 90 can be configured as a toothed belt wheel or Similarly. Accordingly, the wheel 90 can be found engaged with a belt not explicitly shown in Figures 2 to 6, in particular a toothed chorea. The belt can be guided through a recess 92 in the table of the work pieces 70 towards the support section 74. The recess 92 can also be designated as recess of the housing 92.

From Fig. 3 it follows that a housing 96 can be configured on the table of the work pieces 70 for the reception of the support section 74. It is preferred that the support section 74 is adapted to the housing 96 in such a way that the support section 74 can be integrated "if possible" into the table of the work pieces 70. The housing 96 can have at least one adjustment surface 98, which is adapted to a counter adjustment surface 102 of the support section 74, compare in this respect also figure 5. In the joined state, the counter adjustment surface 102 can contact the adjustment surface 98. A secure connection can be made between the support section 74 and the table of the work pieces 70 through at least one fixing element 100, preferably on a plurality of fixing elements 100. In the figures, only one fixing element 100 is shown in each case for reasons of clarity. n the fixing elements 100 may be screws or the like. It is advantageous to provide a plurality of fixing elements 100 in order to guarantee a high strength joint between the support section 74 and the table of the workpieces 70. In addition, it is preferred that the profile 72 is also configured in the section of support 74 at least by sections. Accordingly, the support section 74 can be set in the joined state, especially comparing Figure 2, as an integral component of the rail 36.

In principle, it is conceivable to also house and guide the module holder 80 in the profile 72. However, of

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alternatively it is also conceivable to couple the module holder 80 with a separate gma, that is, to conduct it independently of the gma 36 with the gma profile 72. Such configuration is illustrated below with the help of Figures 5 and 6.

Referring to FIG. 4, exemplary equipment of the module holder 80 is illustrated. In the module holder 80 or on its platform 84 a measuring support 106 can be housed, which is associated with a measuring unit 108. The unit Measurement 108 may have at least one measurement probe 1110, which is configured to explore configuration elements of workpiece 50. Measurement unit 108 may be exemplary configured to detect diameters, axial positions, axial distances and measurements similar to work piece 50.

In principle, the measurement unit 108 can also be configured to detect position tolerances, shape tolerances and the like. This may include the detection of a roundness, a flatness and similar variables. For positioning the measuring unit 108 or at least one measuring probe 110, a carriage 112 may be provided, which is coupled with the module holder 106. The carriage 112 may allow at least one movement in the X-direction (axis 30). A movement of the measuring unit 108 (or of the module holder 80) in the Z-direction (axis 32) can perhaps be carried out through the drive 86, which is coupled with the module holder 80. For this purpose, It can be provided, in principle, in the manner already described a belt drive 116, which couples the motor 88 with a linear drive 118, which is associated with the support section 74, especially comparing Figure 5 and Figure 6. In other words, the support section 74, the module support 80 and the drive 86 may together form a positioning axis, which allows a displacement of the module support 80 in the Z-direction along the section of the gma 36, which is defined by support section 74.

In particular, the linear drive 118 for the module holder 80 can also have a corresponding wheel or outside of a toothed belt 120. The wheels 90 and 120 can be coupled to each other through the belt (not shown in detail) of the drive belt 116. The linear drive 118 may be configured as a spindle drive. The linear drive 118 may comprise a linear carriage 112, which is scrollable in a controlled manner and defined in the longitudinal direction (Z-direction).

It is advantageous to arrange the linear drive 118 on one side of the support section 74, which (in the joined state) is covered by the support section 74. In this way, the linear drive 118 can be covered against damage and excessive contamination. In addition, the linear drive 118 does not impair the longitudinal extension of the gma profile 72 or only in a non-essential way. It is advantageous that the table of the work pieces 70 conditions with the support section 74 integrated therein along its entire longitudinal extension (extension-Z) a profile of gma 72 usable. This means in other words that it is preferred that the components that can be received in GMA 36, perhaps the spindle of the work pieces 38, the moving head 46 or the like, can also be received at least partially in section 36, see also figure 2.

It can also be seen from Figure 5 that a base plate 124 can be housed in the car or linear carriage 122 of the linear drive 118, which can be coupled with at least one support arm 126. Preferably, the plate of base 124 can be coupled with two support arms 126-1, 126-2.

The at least one support arm 126 can pass through at least one recess 82 in the support section 74. The at least one support arm 126, preferably the two support arms 126-1, 126-2 can be coupled with the module support 80, whose platform 84 can accommodate modules. In other words, through the module holder 80, the base plate 124 and the support arms 126-1, 126-2 can result in a closed profile, which extends around the linear drive 118 as well as around a central part of the support section, which is delimited by recess 82-1, 82-2. In this way, the module support 80 can be positioned on the "upper side" of the support section 74 with high accuracy, without the drive technique necessary for this purpose damaging the profile of gma 72. The drive technique, in particular the linear drive 118 with the linear carriage 122 are arranged, in effect, on the "bottom side" of the support section 74. The module support 80 may be guided independently of the (overall) gma 36. A gma ( local) for module support 80 can be prepared through linear drive 118 or associated with it.

From figure 6 it is further shown that the area of the support section 74, which configures the gma 36, can be formed of several components. Exemplary, the support section 74 may have a base plate 130, which can be coupled with a ribbon 132, to configure the profile of gma 72. It is understood that other configurations are conceivable. In the base plate 130 the recesses 82-1, 82-2 can be made for the support arms 126-1, 126-2. Other embodiments and detail configurations are conceivable without further ado.

In figure 6, in addition, with the reference sign 134 a position detection unit is indicated, which is configured to detect a current position (actual position) of the module holder 80 and of any modules housed there at least at least axis length 32 (Z-direction). Suitably, the position detection unit

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134 may be coupled with drive 86, to enable a defined and supervised movement of the module holder 80. In particular, the position detection unit 134 may be coupled with the control installation 60 (Figure 1), to feed This position data. The control installation 60 may be configured to control the drive 86 for the defined displacement of the module holder 80.

In general, the accommodation of the work pieces 34 with the table of the work pieces 70, in which the support section 74 is integrated, can increase the scope of the function of the machine tool 10. However, this does not It is done at the expense of basic functions. This can be attributed to the fact that the support section 74 can be integrated "invisible" or "almost invisible" from the outside in the table of the work pieces 70. In this way, it is not harmed, or only to a non-essential extent. the interface, which conditions the rail 36. During the accommodation of work pieces 50 in the housing of work pieces 34, therefore, there are no essential limitations. In spite of everything, the integration of an additional controllable (displacement) axis in the table of the work pieces 70 allows a plurality of advantageous configurations, which can especially affect the integration of measurement tasks and quality control tasks.

Claims (13)

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Five fifty 55 60 1. - Installation of work piece housing (34) for a machine tool (10), in particular a grinding machine for the machining by starting of workpiece chips (50), in which the installation of housing parts of work (34) presents a workpiece table (70) with a gma (36), in which a workpiece fixing support (40) can be accommodated, in which the workpiece table ( 70) also has a support section (74) with a module support (80), in which the support section (74) is associated with a gma (36), and in which the module support ( 80) is housed in a longitudinally movable way in the support section (74) and can be coupled with a drive (86), characterized in that the support section (74) is integrated in the gma (36). 2. - Installation of work piece housing (34) according to claim 1, wherein the support section (74), the module support (80) and the drive (86) define a positioning axis, which allows a displacement of the module support (80) in a longitudinal direction (32) along at least one section of the gma (36), which is defined through the support section (74), so that The workpiece fixing bracket (40) can be housed longitudinally in the gma (36). 3. - Installation of work piece housing (34) according to claim 1 or 2, wherein the support section (74) is configured as an insert, which can be housed in a housing (96) of the table of work pieces (70). 4. - Installation of work piece housing (34) according to one of the preceding claims, wherein the gma (36) has a gma profile (72) which extends in the longitudinal direction (32) and extends , at least in sections, also in the support section (74). 5. - Installation of work piece accommodation (34) according to claim 4, wherein the gma profile (72) of the workpiece table (70) and the gma profile (72) of the support section (74) is aligned with each other in the assembled state with each other, preferably they are aligned so that they coincide with each other 6. - Installation of work piece housing (34) according to one of the preceding claims, wherein the support section (74) configures a section (76) of the GMA (36), in particular a middle section (76) along a longitudinal extension of the gma. 7. - Installation of work piece housing (34) according to one of the preceding claims, wherein the module support (80) comprises at least one support arm (126), which crosses a recess, which is extends essentially in the longitudinal direction, of the support section (74). 8. - Installation of work piece housing (34) according to one of the preceding claims, wherein the module holder (80) can be coupled with a linear drive (118), in particular with a spindle mechanism . 9. - Workpiece housing installation (34) according to claim 8, wherein the linear drive (118) can be coupled with a motor (88), especially a servo motor, in which the motor ( 88) is coupled to the workpiece table (70), and in which the motor can be coupled indirectly with the module holder (80), in particular by means of a belt transmission (116), in the that the belt transmission (116) extends, at least in sections, through a recess of the housing (92) on the workpiece table (70). 10. - Installation of work piece housing (34) according to one of the preceding claims, in which a first fixing support (38) and a second support are housed in the workpiece table (70). for fixing (46), in particular a work piece spindle (38) and a moving head (36), in which the first fixing support (38), the second fixing support (46) and the module support (80) are housed in the gma) 36), and in which the module support (80) is movable between the first fixing support (38) and the second fixing support (46). 11. - Installation of work piece housing (34) according to one of the preceding claims, in which a measuring recorder (110), in particular an optical measuring probe, is housed in the mobile support (80), a touch measurement probe or an approach sensor. 12. - Installation of work piece housing (34) according to one of the preceding claims, in which, in addition, a position detection unit (134) is provided, which is configured, to detect absolute positions and / or relative positions of the module holder (80), in particular of a measurement recorder (110) housed in the module holder (80). 13.- Machine tool (10), in particular grinding machine for machining by chip removal work pieces (50), with a work piece accommodation installation (34) according to one of the preceding claims for housing a work piece (50), and with a spindle head (24) for housing of a tool (18), in particular an abrasive wheel (18). 5 14.- Machine tool (10) according to claim 14, wherein the machine tool (10) is configured as a T-car machine with a workpiece table (70) movable in the longitudinal direction or as a cross-car machine with a workpiece table (70), which is fixed on a machine bed (14) . 15. Machine tool (10) according to one of claims 13 or 14, further comprising a control installation (60), which can be coupled with a position detection unit (134), which It is configured to detect displacement tracks of the module holder (80), in particular displacement tracks of a measurement recorder (110) housed in the module holder (80). fifteen